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Make a fish swim errors

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Old   June 18, 2022, 17:59
Default Make a fish swim errors
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Bailey
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I am new to openfoam and am trying to follow the Chalmers "make a fish swim" case. I am getting errors when running it and don't really know what they are telling me (or how to interpret them). I see the Courant (CFL) conditions growing to 10^100, so I know that is a problem, but I don't necessarily know how to fix it. I know it usually is an issue based on either time step or resolution, but I imagine many people have successfully run this so I don't really know the problem. I know it used pimpleDyMFoam which is now just pimpleFoam, so not sure if that matters for getting errors? I am using openfoam8 on a mac, for reference.

The error is...
Quote:
#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const at ??:?
#4 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMa trix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:?
#5 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#6 Foam::fvMatrix<double>::solveSegregated(Foam::dict ionary const&) at ??:?
#7 Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/openfoam8/platforms/linux64GccDPInt32Opt/bin/pimpleFoam"
#8 Foam::fvMatrix<double>::solve() in "/opt/openfoam8/platforms/linux64GccDPInt32Opt/bin/pimpleFoam"
#9 ? in "/opt/openfoam8/platforms/linux64GccDPInt32Opt/bin/pimpleFoam"
#10 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#11 ? in "/opt/openfoam8/platforms/linux64GccDPInt32Opt/bin/pimpleFoam"
Floating point exception
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